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The difference between the battery 21700 and 18650 in size, specification capacity and application field. 1, different sizes: 18650 lithium battery, diameter 18MM, length (height) 65MM. The 21700 lithium battery, with a diameter of 21MM and a length (height) of 70MM, is often referred to as a lithium-ion battery; 2, the specification capacity is different; 3, the application field is different;
The basic principle of a circulating chiller is that the temperature of a system or object is governed by the heat flow into it and the heat flow out of it. Chilling circulators are used to do low temperature experiment such as chemical, biological and physical experiment in low temperature.
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